The electron affinity of the following elemen | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The electron affinity $(EA)$ generally increases across a period and decreases down a group. However,there are exceptions due to electronic config

Vedclass · Accepted Answer

$Cl > O > C > N$

Vedclass · Answer

(B) The electron affinity $(EA)$ generally increases across a period and decreases down a group. However,there are exceptions due to electronic configuration. For the given elements $(C, N, O, Cl)$: $1$. $Cl$ (Chlorine) has the highest electron affinity among these because it is a halogen with a high effective nuclear charge and a small size. $2$. $O$ (Oxygen) has a higher electron affinity than $C$ (Carbon) and $N$ (Nitrogen). $3$. $N$ (Nitrogen) has a very low (near zero or positive) electron affinity because it has a stable half-filled $2p^3$ subshell. $4$. Comparing $C$ and $N$,$C$ has a higher electron affinity than $N$. Thus,the correct order is $Cl > O > C > N$.

The electron affinity of the following elements can be arranged as:

Similar Questions

If the electron affinity of $Cl$ is $348 \ kJ/mol$,then how much energy is released to convert $1.0 \ g$ of $Cl$ into $Cl^-$ gas in $kJ$?

Which of the following represents the correct order of electron gain enthalpy (electron affinity) for halogens?

Which of the following atoms should have the highest $1^{st}$ electron affinity?

Given below are two statements:
Statement $I$: Fluorine has most negative electron gain enthalpy in its group.
Statement $II$: Oxygen has least negative electron gain enthalpy in its group.
In the light of the above statements,choose the most appropriate from the options given below.

Which of the following processes is endothermic?

Vedclass Test Series

Exam Paper Generator

Online Exam Module